Programs that utilize tree structures need to process nodes in a tree (represented as circles in below diagram). Nodes contain information about an object. For now, let's assume each node contains a letter. The arrows indicate a link between nodes.
Inorder Traversal is a type of tree traversal algorithm. Inorder refers to when the root is processed inbetween to its two subtrees.
Given a non-empty tree,
The order would go
D,B,G,E,A,C,F
Here is an example of InOrder in C++
Steps to Inorder Traversal
Given a binary tree PY:template
The same example in Haskell might look like
data Tree a = ET | Node(a, Tree a, Tree a)Compare: Pre-order traversal, post-order traversalinorder :: Tree a -> [a] inorder ET = [] inorder (Node (x, left,right)) = (inorder left) ++ [x] ++ (inorder right)